HESI A2 Math Practice Test 2024

Correct Answer: A

Rationale: To add fractions, we need a common denominator, which in this case is 14. So, we rewrite 5/7 as 10/14 and 3/14 remains the same. Adding these gives us 13/14, which is the correct answer (A). The other choices are incorrect because B, C, and D do not properly add up the fractions with a common denominator of 14.

Correct Answer: A

Rationale: To solve 7 1/8 + 2 4/12, first convert 2 4/12 to an improper fraction: 2 4/12 = 2 + 1/3 = 2 1/3 = 7/3. Now, add 7 1/8 and 7/3 by finding a common denominator, which is 24. 7 1/8 = 57/8. Add 57/8 and 7/3 to get 183/24. Simplify 183/24 to 9 11/24, which is the correct answer (A). Choices B, C, D are incorrect as they do not match the calculated result.

Correct Answer: A

Rationale: To determine who ate more, we compare 3/5 of Sally's lunch to 75% of John's. Converting 75% to a fraction gives us 3/4. Thus, 3/5 is less than 3/4. Therefore, John ate more than Sally. Option A is correct. Option B is incorrect as Sally ate less. Option C is incorrect as their consumption is not equal. Option D is incorrect as both of them ate some portion of their lunch.

Correct Answer: B

Rationale: The military time 15:17:52 is equivalent to 3:17:52 PM in regular time. To convert from military time to regular time, we subtract 12 from the hour if it is greater than 12 to get the PM time. Therefore, 15 - 12 = 3, indicating it's in the afternoon. The correct answer is B (3:17 PM). Choice A (2:17 PM) is incorrect because 15 is greater than 12, so it would be in the afternoon. Choice C (5:17 AM) is incorrect because 15 is in the afternoon, not morning. Choice D (9:17 AM) is incorrect because 15 is in the afternoon, not morning.

Correct Answer: A

Rationale: To determine the patient with the highest systolic pressure in the table, you need to find the largest number in the 'systolic pressure' column. This is because the highest systolic pressure reading directly corresponds to the individual with the highest blood pressure value among all age groups. Comparing means (Choice B) would not identify the specific individual with the highest pressure, as it calculates an average. Adding all values and dividing by the total number (Choice C) would give the average pressure, not the highest. Subtracting the lowest from the highest (Choice D) would only give the range, not the specific highest value.